package com.hyh.spring;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.SpringCloudApplication;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.Bean;

/**
 * @BelongsPackage: com.hyh.spring
 * @ClassName PaymentHystrixMain8001
 * @Author: hyhWTX
 * @CreateTime: 2023-04-15  12:58
 * @Description: TODO (一句话描述以下该类的功能)
 * @Version: 1.0
 */
@SpringCloudApplication
@EnableEurekaClient
//fallback主启动类进行激活调用
@EnableCircuitBreaker
public class PaymentHystrixMain8001 {
    public static void main(String[] args) {
        SpringApplication.run(PaymentHystrixMain8001.class,args);

    }
    /**
     *此配置是为了服务监控而配置，与服务容错本身无关，springcloud升级后的坑
     *ServletRegistrationBean因为springboot的默认路径不是"/hystrix.stream"，
     * 源代码部分：private static final String[] DEFAULT_MAPPINGS = { "/*" };
     *只要在自己的项目里配置上下面的servlet就可以了
     */
    @Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet hystrixMetricsStreamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(hystrixMetricsStreamServlet);
        registrationBean.setLoadOnStartup(1);
        //重点部分
        registrationBean.addUrlMappings("/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;


    }
}
